by Guppy, J.C, Meloche, F, Harcourt, D.G
Published in Canadian entomologist (01.02.1988)

by Harcourt, D.G

by Harcourt, D.G
Published in Canadian entomologist (1971)

by Harcourt D.G
Published in Canadian Entomologist (1981)

by Harcourt, D.G
Published in Canada agriculture (1981)

by Harcourt, D.G
Published in Factsheet - Ontario Ministry of Agriculture and Food (1981)

by Harcourt, D.G
Published in Entomol Soc Quebec Ann (1973)

by Harcourt, D.G
Published in Man and the Ecosystem (1971)

by Latheef, M.A, Harcourt, D.G
Published in Entomologia experimentalis et applicata (1973)

by Hudon, M, LeRoux, E.J, Harcourt, D.G
Published in Agricultural zoology reviews (1989)

by Harcourt D.G, Binns M.R
Published in Canadian Entomologist (1980)

by Guppy J.C, Harcourt D.G
Published in Canadian Entomologist (1978)

by Taylor, R.G, Harcourt, D.G
Published in Proceedings of the Entomological Society of Ontario (1975)

by Harcourt, D.G. (Agriculture Canada, Ottawa, Ontario, Canada), Guppy, J.C, Tyrrell, D
Published in Environmental entomology (01.06.1990)

by Harcourt D.G, Yee J.M
Published in Environmental entomology (1982)

by Harcourt, D.G. (Agriculture Canada, Ottawa, Canada), Guppy, J.C
Published in Environmental entomology (01.02.1991)

by Harcourt, D.G. (Agriculture Canada, Ottawa), Binns, M.R
Published in Great Lakes entomologist (01.09.1989)

by Harcourt, D.G. (Agriculture Canada, Ottawa, Canada), Bereza, K
Published in Great Lakes entomologist (01.01.1990)

by Harcourt D.G, Parisi R.A, Aragon J.R
Published in RIA. Revista de investigaciones agropecuarias (1980)

by Harcourt D.G, Curvetto R, Ves Losada J
Published in RIA. Revista de investigaciones agropecuarias (1980)